https://tephra.health/blogs/actualites 2026-05-30T00:43:19+01:00 weekly https://tephra.health/blogs/journal 2026-05-30T17:57:48+01:00 weekly https://tephra.health/blogs/journal/the-science-of-exfoliation 2026-05-30T17:51:28+01:00 weekly https://cdn.shopify.com/s/files/1/1004/3582/0921/articles/Gemini_Generated_Image_ot76z3ot76z3ot76-clean.png?v=1780159888 Physical and chemical exfoliation, explained Cross-section of skin showing dead surface cells lifting away https://tephra.health/blogs/journal/is-volcanic-sand-good-for-skin 2026-05-30T17:57:35+01:00 weekly https://cdn.shopify.com/s/files/1/1004/3582/0921/articles/Gemini_Generated_Image_qccgg0qccgg0qccg-clean.png?v=1780160255 Is volcanic sand actually good for skin? Tephra scrub formulation with fine volcanic sand https://tephra.health/blogs/journal/how-often-should-you-exfoliate 2026-05-30T17:57:48+01:00 weekly https://cdn.shopify.com/s/files/1/1004/3582/0921/articles/Gemini_Generated_Image_vm2hidvm2hidvm2h-clean.png?v=1780160268 How often should you really exfoliate? Fine Icelandic black volcanic sand beside the Tephra jar